CN107422530A - A kind of high sprayed film for covering high brightness and preparation method thereof - Google Patents
A kind of high sprayed film for covering high brightness and preparation method thereof Download PDFInfo
- Publication number
- CN107422530A CN107422530A CN201710678965.XA CN201710678965A CN107422530A CN 107422530 A CN107422530 A CN 107422530A CN 201710678965 A CN201710678965 A CN 201710678965A CN 107422530 A CN107422530 A CN 107422530A
- Authority
- CN
- China
- Prior art keywords
- layer
- sprayed film
- atomizing
- particle
- covering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
- G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
Abstract
The present invention relates to field of optical films, more particularly relates to a kind of high sprayed film for covering high brightness and preparation method thereof.In order to solve the problems, such as that diffuser plate luminance loss is big in current direct-type backlight and covering is general, the present invention provides a kind of high sprayed film for covering high brightness and preparation method thereof.Sprayed film provided by the invention includes transparent substrate layer, light collecting layer and atomizing layer, and the upper surface of transparent substrate layer is provided with light collecting layer, and the lower surface of transparent substrate layer is provided with atomizing layer.The sprayed film has preferable covering and Geng Gao brightness performance, can overcome the shortcomings that present diffuser plate luminance loss is big and covering is general.The thickness of the sprayed film is only 10% the 20% of diffuser plate simultaneously, has certain flexible, can meet that large scale display screen is lightening with the trend of curved-surface display.Atomization membrane preparation method technique provided by the invention is simple, and easily operated, cost has a clear superiority than diffuser plate.
Description
Technical field
The present invention relates to field of optical films, more particularly relates to a kind of high sprayed film for covering high brightness and its preparation side
Method.
Background technology
Liquid crystal display panel has been widely used in computer, mobile phone, TV, navigator, digital camera and some instruments and shown
In display screen.Because liquid crystal panel itself does not light, and one of the critical component of backlight module as liquid crystal display panel, just rise
The enough brightness of offer and the effect of uniform light have been provided.
Backlight module is divided into two kinds of side entrance back and direct-type backlight according to lamp source design difference.Sidelight type backlight module
Lamp source be strip lamp source, it is guide-lighting by reflector plate reflection light after strip-shaped light source emits beam positioned at the both sides of light guide plate
Obtain that brightness is preferable after plate, diffusion barrier, prismatic lens uniform light, the area source of uniform light, sidelight type backlight module has light
Just it is, slim, energy-conservation the advantages of.Side entrance back is mainly used in small-medium size display field.The lamp source of down straight aphototropism mode set
For point-like lamp source, below light guide plate, typically there are 2-4 bank light pearls, often arrange 4-8, its structure is as shown in Figure 3；Downward back
Optical mode group has the advantages that brightness is high, and angle of visibility is good.Direct-type backlight is mainly used in large scale display field.Direct-type backlight
Determine that the light of spot light must be atomized using a diffuser plate above its lamp chamber using the particular form of a lamp source, make a light
Source homogenizes.
Traditional diffuser plate is usually PC (makrolon), PMMA (acrylic) material, be with the addition of in plastic master batch
The light diffusing agents such as some calcium carbonate granules, silicon dioxide granule, barium sulfate particles and some other plastic additives, by being extruded into
Type is the thickness and shape needed.The effect of atomizing light source can be played in direct-type backlight.Diffusion prepared by conventional method
The shortcomings of light transmittance is low, and luminance loss is big, and covering effect is general be present in plate；The thickness of conventional diffusion plate is in more than 1mm simultaneously,
It is more thick and heavy, the hard and crisp development trend that can not meet that large scale display field is lightening and curving of material.
In summary, develop has high covering high brightness effect suitable for direct-type backlight, adapts to lightening and bent
The sprayed film that face is shown has become a great problem that the art is badly in need of solving.
The content of the invention
In order to solve the problems, such as that diffuser plate luminance loss is big in current direct-type backlight and covering is general, the present invention provides
A kind of high sprayed film for covering high brightness and preparation method thereof.The sprayed film includes transparent substrate layer, light collecting layer and atomizing layer,
The upper surface of transparent substrate layer is provided with light collecting layer, and the lower surface of transparent substrate layer is provided with atomizing layer.The sprayed film has preferable
Covering and Geng Gao brightness performance, can overcome the shortcomings that present diffuser plate luminance loss is big and covering is general.Simultaneously
The thickness of the sprayed film is only the 10%-20% of diffuser plate, has certain flexible, can meet that large scale display screen is light
Thinning and the trend of curved-surface display.Atomization membrane preparation method technique provided by the invention is simple, and easily operated, cost compares diffuser plate
Have a clear superiority.
In order to solve the above-mentioned technical problem, the present invention uses following technical proposals：
The present invention provide it is a kind of it is high cover high brightness sprayed film, the sprayed film include transparent substrate layer, light collecting layer and
Atomizing layer, the upper surface of transparent substrate layer are provided with light collecting layer, and the lower surface of transparent substrate layer is provided with atomizing layer.
Further, described light collecting layer has micro-structural, and the light collecting layer is ultraviolet light (UV) solidify coating.
Further, described light collecting layer is carved with micro-structural.
Further, the material of the UV solidification coating in acrylic resin, polyurethane resin, epoxy resin one
Kind or at least two combination.
Further, the material of the UV solidification coating is preferably acrylic resin or polyurethane resin.Further, institute
The material for stating UV solidification coating is most preferably acrylic resin.
Further, the adhesive of described atomizing layer including 100 parts by weight, the organic diffusion particle of 60-140 parts by weight and
The inorganic diffusion particle of 10-100 parts by weight.
Further, described atomizing layer include 100 parts adhesive, 90-130 parts by weight organic diffusion particle and
The inorganic diffusion particle of 40-80 parts by weight.The number is parts by weight.
Further, described atomizing layer include 100 parts adhesive, 120-130 parts by weight organic diffusion particle and
The inorganic diffusion particle of 50-60 parts by weight.
Further, the material of organic diffusion particle in the atomizing layer be selected from polymethyl methacrylate (PMMA),
Polybutyl methacrylate (PBMA), polyamide (PA), polyurethane (PU), polystyrene (PS) and polymethyl siloxane (PDMS)
One kind or at least two combination in resin.The material of inorganic diffusion particle in the atomizing layer is selected from titanium dioxide
(TiO2), silica (SiO2), barium sulfate (BaSO4), calcium sulfate (CaSO4) and one kind in zinc oxide (ZnO) or at least two
The combination of kind.
Further, the material of organic diffusion particle in the atomizing layer is preferably one kind in PBMA, PA and PMMA
Or at least two combination.
Further, the material of organic diffusion particle in the atomizing layer is most preferably PBMA or PMMA.
Further, the material of the inorganic diffusion particle in the atomizing layer is preferably TiO2Or SiO2；In the atomizing layer
The material of inorganic diffusion particle be most preferably TiO2。
Further, the adhesive in the atomizing layer is selected from epoxy resin, phenolic resin, Lauxite, isocyanates
Resin, melamine-formaldehyde resin, organic siliconresin, furane resins, unsaturated polyester (UP), acrylic resin, polyimides, polyphenyl
And imidazoles, phenolic aldehyde-Pioloform, polyvinyl acetal, phenolic aldehyde-polyamide, phenolic aldehyde-epoxy resin, one kind in epoxy-polyamide or at least
Two kinds of combination.
Further, the micro-structural is micro-prism structure or microlens structure.
Further, the prism bar of the micro-prism structure is highly 5-60 μm, and corner angle are 70-120 °.
Further, the prism bar is the linear pattern of wobble structure or rule.
Further, the regular linear pattern is also known as contour linear pattern, and the height for referring to single prism bar is constant
's.
Further, the wobble structure refers to that the height of single prism bar has the difference of height of gradual change.
Further, it is 30-50 μm that the prism bar of the micro-prism structure is highly preferred, and corner angle are preferably 80-100 °；
Further, the prism bar of the micro-prism structure is preferably isoline type (also referred to as contour linear pattern).
Further, the microlens structure is circular protrusions, a diameter of 5-200 μm of the microlens structure, height
For 1-100 μm, the 1/5-2/3 highly for diameter.
Further, the contour line that the circular protrusions connect with transparent substrate layer is circular or substantially circular, institute
The contour line for stating the longitudinal cross-section by peak of circular protrusions is arc.Further, the circular protrusions have arc
Surface.
Further, the circular protrusions include hemispherical and class hemispherical dome structure.
Further, the diameter of the microlens structure is preferably 80-150 μm, in fact it is highly preferred that is 40-60 μm.Preferably,
Highly it is the 2/5-3/5 of diameter.
Further, the particle size of organic diffusion particle in the atomizing layer is 1-50 μm.In the atomizing layer
The particle size of inorganic diffusion particle is 0.01-10 μm.
Further, the particle size of organic diffusion particle in the atomizing layer is preferably 5-30 μm, the atomizing layer
In the particle size of inorganic diffusion particle be preferably 0.1-5 μm.
Further, the particle size of organic diffusion particle in the atomizing layer is most preferably 10-30 μm.The atomization
The particle size of inorganic diffusion particle in layer is most preferably 1-5 μm.
Further, the thickness of the atomizing layer is the 1/10-2/3 for maximally diffusing particle.
The diffusion particle includes organic diffusion particle and inorganic diffusion particle.
Further, the thickness of the atomizing layer is preferably up to the 1/2-2/3 of diffusion particle.
Further, the thickness of the atomizing layer maximally diffuses the 1/2-3/5 of particle.
Further, the thickness of the substrate layer is 1-300 μm；The thickness of the atomizing layer is 5-30 μm.
Further, the thickness of the transparent substrate layer is preferably 38-250 μm；The thickness of the atomizing layer is preferably 10-
18μm。
Further, the thickness of the transparent substrate layer is most preferably 125-250 μm.
The thickness of the atomizing layer refers to the thickness of coating dry film.
Further, the material of described transparent substrate layer is selected from makrolon (PC), polyethylene terephthalate
(PET), polyamide (PA), polystyrene (PS), polyethylene (PE), polypropylene (PP), polymethyl methacrylate
(PMMA) one kind in.
Further, the material of the transparent substrate layer is preferably PC, PA or PET；Further, the transparent substrate layer
Material be most preferably PET.
The present invention also provides a kind of method for preparing the high sprayed film for covering high brightness, and the preparation method includes following step
Suddenly：
(1) transparent substrate layer is made using bidirectional extending method；
(2) atomizing layer coating fluid is prepared；
(3) atomizing layer coating solution is put into baking oven in the lower surface of transparent substrate layer, the solidification of atomizing layer coating fluid
Form atomizing layer；
(4) ultraviolet light (UV) solidified resin is coated on to the upper surface of substrate layer, rolls through mould and consolidates with ultraviolet light
Change, form the light collecting layer with micro-structural, so as to which sprayed film finished product be made.
Further, inorganic diffusion particle and organic diffusion particle are added in adhesive in step (2), and added molten
Agent, half an hour is stirred, add curing agent, stir half an hour.
Further, the temperature of baking oven described in step (3) is 80 DEG C -120 DEG C, and baking time is 0.5-2 hours.
Further, the sprayed film is used in down straight aphototropism mode set and lamp device.
Sprayed film provided by the invention includes the mist of transparent substrate layer, the light collecting layer of transparent substrate layer upper surface and lower surface
Change layer, the micro-structural of the light collecting layer of upper surface can play the effect of aggregation light, can increase positive brightness performance；Following table
The atomizing layer in face is due to that containing more organic diffusion particle and inorganic diffusion particle, can play atomization well and cover effect
Fruit, so sprayed film provided by the invention has preferable covering and Geng Gao brightness performance.The technology that the present invention uses is
In the mode that is made of transparent substrate layer upper and lower surface coating function layer, the thickness ratio diffuser plate of the sprayed film of preparation reduces 80%
More than, and there is very big flexible, it can meet that large scale shows the requirement of the lightening and trend of curved-surface display.
Compared with prior art, sprayed film provided by the invention has obvious advantage compared with conventional diffusion plate, very well
Overcome diffuser plate luminance loss greatly and cover it is general the shortcomings that；And the light transmittance that solves conventional diffusion plate is low, thickness
The problem of thickness and material are hard and crisp partially.Meanwhile it is provided by the invention atomization membrane preparation method technique it is simple, easily operated, cost
Had a clear superiority than diffuser plate.Sprayed film provided by the invention is used in down straight aphototropism mode set, for substituting existing straight-down negative
Diffuser plate in backlight module.
Sprayed film provided by the invention is a kind of high new function film for covering high brightness performance, especially suitable for optics
Display field, particularly suitable for being used in down straight aphototropism mode set and lamp device, but it is not limited to product listed above.
Brief description of the drawings
Fig. 1 is a kind of structural representation of sprayed film prepared by the present invention；
Fig. 2 is the structural representation of another sprayed film prepared by the present invention；
Fig. 3 is present down straight aphototropism mode set structural representation；
Fig. 4 is down straight aphototropism mode set lamp bead distribution schematic diagram.
Embodiment：
With reference to embodiment and accompanying drawing, the invention will be further elaborated, and following examples are to the detailed of the present invention
Describe in detail bright, be not the restriction to the claimed scope of the present invention.Methods described is conventional method unless otherwise instructed.It is described
Raw material are commercially available prod unless otherwise instructed.
As shown in figure 1, a kind of sprayed film prepared by the present invention includes transparent substrate layer 102, light collecting layer 101, atomizing layer
103, wherein 104 be organic diffusion particle, 105 be inorganic diffusion particle；The micro-structural of the light collecting layer 101 is microprism knot
Structure, prism bar are linear pattern.
As shown in Fig. 2 a kind of sprayed film prepared by the present invention, including transparent substrate layer 202, light collecting layer 201, atomizing layer
203, wherein 204 be organic diffusion particle, 205 be inorganic diffusion particle；The micro-structural of the light collecting layer 201 is lenticule knot
Structure, microlens structure are circular protrusions.
As shown in figure 3, existing down straight aphototropism mode set includes reflectance coating 301, lamp source 302 (forms of a few bank light pearls),
Diffuser plate 303, diffusion barrier 304, prism film 305, liquid-crystalline glasses 306.Wherein, diffusion barrier 304, prism film 305 are sequentially the next
Adjustment can be exchanged by putting.Wherein diffuser plate 303 is what sprayed film provided by the invention to be substituted.
As shown in figure 4, existing down straight aphototropism mode set lamp source is lamp bead form (6 × 3), 401 be lamp bead, for a light
Source is, it is necessary to which diffuser plate (sprayed film of the invention) is atomized spot light into uniform area source.
The present invention relates to the evaluation of the sprayed film optical property to preparation.Required material and facility is current material
And equipment.
The preparation method of the high sprayed film for covering high brightness provided by the invention comprises the following steps：
(1) transparent substrate layer is made using bidirectional extending method；
(2) atomizing layer coating fluid is prepared；
(3) atomizing layer coating solution is put into baking oven in the lower surface of transparent substrate layer, the solidification of atomizing layer coating fluid
Form atomizing layer；
(4) ultraviolet light (UV) solidified resin is coated on to the upper surface of substrate layer, rolls through mould and consolidates with ultraviolet light
Change, form the light collecting layer for being carved with micro-structural, so as to which sprayed film finished product be made.
Further, inorganic diffusion particle and organic diffusion particle are added in adhesive in step (2), and added molten
Agent, half an hour is stirred, add curing agent, stir half an hour.
Further, the temperature of baking oven described in step (3) is 80 DEG C -120 DEG C, and baking time is 0.5-2 hours.
The major optical performance for the sprayed film that the embodiment of the present invention and comparative example provide is tested in the following manner.
1st, light transmittance and mist degree test：A4 sprayed film to be measured is taken, is put into light transmittance mist degree tester (NDH7000)
In measure its light transmittance or haze value.
2nd, luminance test：The sprayed film to be measured of an A4 size is taken, is put into according to test structure in 20 cun of backlight modules,
Lighted under 24V voltage, its brightness is tested with luminance meter (BH-7).
3rd, covering is tested：One 42 cun of atomization diaphragm to be measured is taken, is placed on the 42 cun of down straight aphototropism mode sets lighted
On, covering situation of the observation sprayed film to lamp bead in direct-type backlight.Covering refers to that being atomized diaphragm is placed on what is be already on
To the degree of lamp bead (spot light) atomization on module.Covering is better, and atomizing effect is better, it is impossible to spot light is seen, presentation
It is uniform area source；Covering is poorer, and atomizing effect is poorer, it can be seen that spot light, presentation is not uniform area source.
Covering evaluation criterion is as follows：
Very well：Completely invisible lamp bead, is presented highly uniform area source；
Preferably：Invisible lamp bead, presentation is not very uniform area source, there is slightly light and dark change；
Typically：Invisible lamp bead, the uneven area source of presentation, there is light and dark change；
It is poor：Slight visible lamp bead, present obvious light and dark change.
Embodiment 1
The present invention provide it is a kind of it is high cover high brightness sprayed film, the sprayed film include transparent substrate layer, light collecting layer and
Atomizing layer, the upper surface of transparent substrate layer are provided with light collecting layer, and the lower surface of transparent substrate layer is provided with atomizing layer.Described light collecting layer
With micro-structural, the light collecting layer is ultraviolet light (UV) solidify coating.
Wherein, it is transparent substrate layer from PC, thickness is 100 μm, and its upper surface is light collecting layer, the UV solidification coating
Material is acrylic resin.The micro-structural is micro-prism structure, and the prism bar of the micro-prism structure is highly 40 μm, corner angle
For 100 °, prism bar is contour linear pattern.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive, the organic diffusion particle of 95 parts by weight,
With the inorganic diffusion particle of 40 parts by weight；Adhesive in the atomizing layer is isocyanate resin, having in the atomizing layer
The material of machine diffusion particle is PBMA, and the particle diameter of particle is 5-15 μm；The material of inorganic diffusion particle in the atomizing layer is
TiO2, the particle diameter of particle is 0.5-5 μm, and the thickness of the atomizing layer is 10 μm, is maximally diffuse particle diameter 2/3.
Embodiment 2
Such as the sprayed film that embodiment 1 provides, wherein, be transparent substrate layer from PET, thickness is 75 μm, and its upper surface is
Light collecting layer, the material of the UV solidification coating is acrylic resin.The micro-structural is micro-prism structure, the micro-prism structure
Prism bar highly be 5 μm, corner angle be 70 °, prism bar is contour linear pattern.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive, the organic diffusion particle of 75 parts by weight,
With the inorganic diffusion particle of 100 parts by weight；Adhesive in the atomizing layer is isocyanate resin, having in the atomizing layer
The material of machine diffusion particle is PMMA, and the particle diameter of particle is 5-10 μm；The material of inorganic diffusion particle in the atomizing layer is
TiO2, the particle diameter of particle is 0.5-1 μm, and the thickness of the atomizing layer is 5 μm, is maximally diffuse particle diameter 1/2.
Embodiment 3
Such as the sprayed film that embodiment 1 provides, wherein, be transparent substrate layer from PA, thickness is 150 μm, and its upper surface is
Light collecting layer, the material of the UV solidification coating is acrylic resin.The micro-structural is micro-prism structure, the micro-prism structure
Prism bar highly be 50 μm, corner angle be 80 °, prism bar is contour linear pattern.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive, the organic diffusion particle of 100 parts by weight,
With the inorganic diffusion particle of 60 parts by weight；Adhesive in the atomizing layer is isocyanate resin, having in the atomizing layer
The material of machine diffusion particle is PA, and the particle diameter of particle is 20-30 μm；The material of inorganic diffusion particle in the atomizing layer is
SiO2, the particle diameter of particle is 1-5 μm, and the thickness of the atomizing layer is 15 μm, is maximally diffuse particle diameter 1/2.
Embodiment 4
Such as the sprayed film that embodiment 1 provides, wherein, be transparent substrate layer from PS, thickness is 188 μm, and its upper surface is
Light collecting layer, the material of the UV solidification coating is epoxy resin.The micro-structural is micro-prism structure, the micro-prism structure
Prism bar is highly 60 μm, and corner angle are 90 °, and prism bar is contour linear pattern.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive, the organic diffusion particle of 70 parts by weight,
With the inorganic diffusion particle of 10 parts by weight；Adhesive in the atomizing layer is isocyanate resin, having in the atomizing layer
The material of machine diffusion particle is that PMMA and PBMA is combined, and the particle diameter of wherein PMMA particles is 30-50 μm, is 50 parts by weight, PMMA
The particle diameter of particle is 10-20 μm, is 20 parts by weight；The material of inorganic diffusion particle in the atomizing layer is BaSO4, particle
Particle diameter is 0.01-1 μm, and the thickness of the atomizing layer is 30 μm, is maximally diffuse particle diameter 3/5.
Embodiment 5
Such as the sprayed film that embodiment 1 provides, wherein, be transparent substrate layer from PC, thickness is 75 μm, and its upper surface is poly-
Photosphere, the material of the UV solidification coating is acrylic resin.The micro-structural is micro-prism structure, the micro-prism structure
Prism bar is highly 30 μm, and corner angle are 75 °, and prism bar is wobble structure.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive and the organic diffusion particle of 90 parts by weight
With the inorganic diffusion particle of 25 parts by weight；Adhesive in the atomizing layer is unsaturated polyester (UP), organic in the atomizing layer
The material of diffusion particle is PU, and the particle diameter of particle is 30-50 μm；The material of inorganic diffusion particle in the atomizing layer is
CaSO4, the particle diameter of particle is 0.5-5 μm, and the thickness of the atomizing layer is 5 μm, is maximally diffuse particle diameter 1/10.
Embodiment 6
Such as the sprayed film that embodiment 1 provides, wherein, be transparent substrate layer from PC, thickness is 38 μm, and its upper surface is poly-
Photosphere, the UV solidification coating are polyurethane resin.The micro-structural is micro-prism structure, the prism bar of the micro-prism structure
It highly it is 30 μm, corner angle are 95 °, and prism bar is wobble structure.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive and the organic diffusion particle of 100 parts by weight
With the inorganic diffusion particle of 80 parts by weight；Adhesive in the atomizing layer is phenolic resin, organic expansion in the atomizing layer
The material of shot is PA, and the particle diameter of particle is 15-20 μm；The material of inorganic diffusion particle in the atomizing layer is TiO2,
The particle diameter of particle is 0.1-1 μm, and the thickness of the atomizing layer is 15 μm, is maximally diffuse particle diameter 3/5.
Embodiment 7
Such as the sprayed film that embodiment 1 provides, wherein, be transparent substrate layer from PET, thickness is 25 μm, and its upper surface is
Light collecting layer, the material of the UV solidification coating is epoxy resin.The micro-structural is microlens structure, and the microlens structure is
Circular protrusions, a diameter of 60 μm of the circular protrusions, highly 2/3 for diameter, it is highly 40 μm.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive and the organic diffusion particle of 140 parts by weight
With the inorganic diffusion particle of 80 parts by weight；Adhesive in the atomizing layer is phenolic resin, organic expansion in the atomizing layer
The material of shot is PU, and the particle diameter of particle is 30-40 μm；The material of inorganic diffusion particle in the atomizing layer is SiO2,
The particle diameter of particle is 7-10 μm, and the thickness of the atomizing layer is 16 μm, is maximally diffuse particle diameter 2/5.
Embodiment 8
Such as the sprayed film that embodiment 1 provides, wherein, be transparent substrate layer from PA, thickness is 1 μm, and its upper surface is poly-
Photosphere, the material of the UV solidification coating is acrylic resin.The micro-structural is microlens structure, and the microlens structure is
Class hemispherical dome structure, a diameter of 5 μm of the class hemispherical dome structure, highly 1/5 for diameter, it is highly 1 μm.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive, the organic diffusion particle of 135 parts by weight,
Formed with the inorganic diffusion particle of 90 parts by weight；Adhesive in the atomizing layer is acrylic resin, in the atomizing layer
The material of organic diffusion particle is PS, and the particle diameter of particle is 1-5 μm；The material of inorganic diffusion particle in the atomizing layer is
ZnO, the particle diameter of particle is 6-10 μm, and the thickness of the atomizing layer is 5 μm, is maximally diffuse particle diameter 1/2.
Embodiment 9
Such as the sprayed film that embodiment 1 provides, wherein, be transparent substrate layer from PET, thickness is 250 μm, and its upper surface is
Light collecting layer, the material of the UV solidification coating is acrylic resin.The prism bar of the micro-prism structure is highly 50 μm, corner angle
For 90 °, prism bar is contour linear pattern.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive, the organic diffusion particle of 120 parts by weight,
Formed with the inorganic diffusion particle of 60 parts by weight；Adhesive in the atomizing layer is isocyanate resin, in the atomizing layer
The material of organic diffusion particle be PMMA, the particle diameter of particle is 10-20 μm；The material of inorganic diffusion particle in the atomizing layer
Matter is TiO2, the particle diameter of particle is 1-5 μm, and the thickness of the atomizing layer is 10 μm, is maximally diffuse particle diameter 1/2.
Embodiment 10
Such as the sprayed film that embodiment 1 provides, wherein, be transparent substrate layer from PA, thickness is 300 μm, and its upper surface is
Light collecting layer, the material of the UV solidification coating is epoxy resin.The micro-structural is microlens structure, and the microlens structure is
Class hemispherical dome structure, a diameter of 150 μm of the class hemispherical dome structure, highly 1/3 for diameter, it is highly 50 μm.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive, the organic diffusion particle of 80 parts by weight and
The inorganic diffusion particle of 10 parts by weight；Adhesive in the atomizing layer is isocyanate resin, organic in the atomizing layer
The material of diffusion particle is PMMA, and the particle diameter of particle is 1-10 μm；The material of inorganic diffusion particle in the atomizing layer is
CaSO4, the particle diameter of particle is 1-5 μm, and the thickness of the atomizing layer is 5 μm, is maximally diffuse particle diameter 1/2.
Embodiment 11
Such as the sprayed film that embodiment 1 provides, wherein, be transparent substrate layer from PET, thickness is 125 μm, and its upper surface is
Light collecting layer, the material of the UV solidification coating is acrylic resin.The micro-structural is microlens structure, the microlens structure
A diameter of 100 μm of the hemispherical dome structure, highly 1/2 for diameter, it is highly 50 μm for hemispherical dome structure.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive and the organic diffusion particle of 130 parts by weight
With the inorganic diffusion particle of 50 parts by weight；Adhesive in the atomizing layer is phenolic aldehyde-epoxy resin, having in the atomizing layer
The material of machine diffusion particle is PBMA, and the particle diameter of particle is 10-30 μm；The material of inorganic diffusion particle in the atomizing layer is
TiO2, the particle diameter of particle is 1-5 μm, and the thickness of the atomizing layer is 18 μm, is maximally diffuse particle diameter 3/5.
Embodiment 12
Such as the sprayed film that embodiment 1 provides, wherein, be transparent substrate layer from PE, thickness is 250 μm, and its upper surface is
Light collecting layer, the material of the UV solidification coating is polyurethane resin.The micro-structural is microlens structure, the microlens structure
A diameter of 160 μm of the class hemispherical dome structure, highly 1/4 for diameter, it is highly 40 μm for class hemispherical dome structure.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive, the organic diffusion particle of 130 parts by weight,
With the inorganic diffusion particle of 50 parts by weight；Adhesive in the atomizing layer is isocyanate resin, having in the atomizing layer
The material of machine diffusion particle is PA, and the particle diameter of particle is 15-30 μm；The material of inorganic diffusion particle in the atomizing layer is
TiO2, the particle diameter of particle is 6-10 μm, and the thickness of the atomizing layer is 10 μm, is maximally diffuse particle diameter 1/3.
Embodiment 13
Such as the sprayed film that embodiment 3 provides, organic diffusion particle in the atomizing layer is 90 parts by weight.
Embodiment 14
Such as the sprayed film that embodiment 5 provides, the transparent substrate layer is PP, and the corner angle of the micro-prism structure are 120 °,
Organic diffusion particle in the atomizing layer is 60 parts.
Embodiment 15
Such as the sprayed film that embodiment 8 provides, the transparent substrate layer is PMMA, and the microlens structure is hemispherical junction
Structure, a diameter of 200 μm of the hemispherical dome structure, highly 1/2 for diameter, it is highly 100 μm.
Embodiment 16
Such as the sprayed film that embodiment 11 provides, the microlens structure is class hemispherical dome structure, the class hemispherical dome structure
A diameter of 150 μm, highly 2/5 for diameter is highly 60 μm.
Embodiment 17
Such as the sprayed film that embodiment 11 provides, the microlens structure is circular protrusions, the circular protrusions it is a diameter of
80 μm, highly 3/5 for diameter, it is highly 48 μm.
Embodiment 18
Such as the sprayed film that embodiment 11 provides, the microlens structure is class hemispherical dome structure, the class hemispherical dome structure
A diameter of 100 μm, highly 2/5 for diameter is highly 40 μm.
Comparative example 1
Sprayed film provided by the invention, wherein, it is transparent substrate layer from PET, thickness is 250 μm, and its upper surface is poly-
Photosphere, the material of the UV solidification coating is polyurethane resin.The micro-structural is micro-prism structure, the micro-prism structure
Prism bar is highly 60 μm, and corner angle are 60 °, and prism bar is contour linear pattern.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive and the organic diffusion particle of 60 parts by weight
With the inorganic diffusion particle of 5 parts by weight；Adhesive isocyanate resin in the atomizing layer, organic expansion in the atomizing layer
The material of shot is PBMA, and the particle diameter of particle is 15-30 μm；The material of inorganic diffusion particle in the atomizing layer is
SiO2, the particle diameter of particle is 0.1-1 μm, and the thickness of the atomizing layer is 10 μm, is maximally diffuse particle diameter 1/3.
The difference for the technical scheme that comparative example 1 provides with the application is：The corner angle of the prism bar of the micro-prism structure
For 60 °.Described atomizing layer includes 5 parts by weight of inorganic diffusion particles.
Comparative example 2
Sprayed film provided by the invention, wherein, it is transparent substrate layer from PA, thickness is 125 μm, and its upper surface is optically focused
Layer, the material of the UV solidification coating is acrylic resin.The micro-structural is micro-prism structure, the rib of the micro-prism structure
Mirror bar is highly 50 μm, and corner angle are 130 °, and prism bar is contour linear pattern.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive and the organic diffusion particle of 150 parts by weight
With the inorganic diffusion particle of 120 parts by weight；Adhesive isocyanate resin in the atomizing layer, it is organic in the atomizing layer
The material of diffusion particle is PU, and the particle diameter of particle is 10-25 μm；The material of inorganic diffusion particle in the atomizing layer is ZnO,
The particle diameter of particle is 1-5 μm, and the thickness of the atomizing layer is 10 μm, is maximally diffuse particle diameter 2/5.
The difference of comparative example 2 and application scheme is：Described atomizing layer includes the organic diffusion particle of 150 parts by weight.
The corner angle of the prism bar of the micro-prism structure are 130 °.
Comparative example 3
Sprayed film provided by the invention, wherein, it is transparent substrate layer from PS, thickness is 75 μm, and its upper surface is optically focused
Layer, the material of the UV solidification coating is polyurethane resin.The micro-structural is microlens structure, and the microlens structure is circle
Shape is raised, a diameter of 100 μm of the circular protrusions, highly 4/5 for diameter, is highly 80 μm.
Its lower surface is atomizing layer, and described atomizing layer includes 100 parts of adhesive, the organic diffusion particle of 135 parts by weight,
Formed with the inorganic diffusion particle of 50 parts by weight；Adhesive in the atomizing layer is unsaturated polyester (UP), in the atomizing layer
The material of organic diffusion particle is PS, and the particle diameter of particle is more than or equal to 0.1 μm, less than 1 μm；Inorganic diffusion in the atomizing layer
The material of particle is TiO2, the particle diameter of particle is more than 10 μm, less than or equal to 20 μm, and the thickness of the atomizing layer is 10 μm, is most
The 1/2 of big diffusion particle particle diameter.
The difference of comparative example 3 and application scheme is：The height of the circular protrusions is the 4/5 of diameter.The atomization
The particle size range of organic diffusion particle in layer is more than or equal to 0.1 μm, less than 1 μm；Inorganic diffusion grain in the atomizing layer
The particle size range of son is more than 10 μm, less than or equal to 20 μm.
Comparative example 4
The light diffusing sheet of Chengzhou Fengsheng Optoelectronics Co., Ltd.'s production, model HT58S, thickness are 1350 μm.
The optical performance test result for the sprayed film that the embodiment of the present invention of table 1 and comparative example provide
Can be drawn from the embodiment shown in table 1 and the test result of comparative example, sprayed film provided by the invention have compared with
Good brightness performance and covering, wherein light collecting layer play a part of improving front face brightness, and atomizing layer, which plays, improves covering
Effect.Diffusion particle particle diameter is smaller in formula rate, and addition is more, and covering is higher.The present invention provides and optimizes diffusion
Particle diameter scope and addition scope, so as to prepare the sprayed film for having high brightness performance and preferable covering effect concurrently.
Wherein, embodiments of the invention 1, embodiment 3, embodiment 6, embodiment 9, embodiment 11, embodiment 13, embodiment
16th, sprayed film prepared by embodiment 17 and embodiment 18 has higher brightness performance and a covering, the sprayed film of preparation it is saturating
Light rate be at least 61.23%, mist degree be at least 95.01% and brightness be at least 2120cd/m2, covering grading preferably and
More than, combination property is preferable.Particularly, the combination property of sprayed film prepared by embodiment 9 and embodiment 11 is optimal, the mist of preparation
Change film light transmittance be at least 61.23%, mist degree be at least 95.76% and brightness be at least 2151cd/m2, covering grading is
To be fine.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is every
The equivalent changes and modifications done according to present invention, it is encompassed by the scope of the claims of the present invention.
Claims (10)
1. a kind of high sprayed film for covering high brightness, it is characterised in that the sprayed film includes transparent substrate layer, light collecting layer and mist
Change layer, the upper surface of transparent substrate layer is provided with light collecting layer, and the lower surface of transparent substrate layer is provided with atomizing layer.
2. the high sprayed film for covering high brightness according to claim 1, it is characterised in that described light collecting layer has micro- knot
Structure, the light collecting layer are ultraviolet light (UV) solidify coating.
3. the high sprayed film for covering high brightness according to claim 1, it is characterised in that described atomizing layer includes 100
The inorganic diffusion particle of the adhesives of parts by weight, the organic diffusion particle of 60-140 parts by weight and 10-100 parts by weight.
4. the high sprayed film for covering high brightness according to claim 2, it is characterised in that the micro-structural is microprism knot
Structure or microlens structure.
5. the high sprayed film for covering high brightness according to claim 4, it is characterised in that the prism of the micro-prism structure
Bar is highly 5-60 μm, and corner angle are 70-120 °.
6. the high sprayed film for covering high brightness according to claim 4, it is characterised in that the microlens structure is circle
Projection, a diameter of 5-200 μm of the microlens structure, be highly 1-100 μm, the highly 1/5-2/3 for diameter.
7. the high sprayed film for covering high brightness according to claim 3, it is characterised in that organic expansion in the atomizing layer
The particle size of shot is 1-50 μm；The particle size of inorganic diffusion particle in the atomizing layer is 0.01-10 μm.
8. the high sprayed film for covering high briliancy according to claim 3, it is characterised in that the thickness of the atomizing layer is most
The 1/10-2/3 of big diffusion particle.
9. the high sprayed film for covering high brightness according to claim 1, it is characterised in that the thickness of the substrate layer is 1-
300μm；The thickness of the atomizing layer is 5-30 μm.
10. a kind of method for preparing the high sprayed film for covering high brightness described in claim 1, the preparation method includes following
Step：
(1) transparent substrate layer is made using bidirectional extending method；
(2) atomizing layer coating fluid is prepared；
(3) atomizing layer coating solution is put into baking oven, atomizing layer coating fluid is formed by curing in the lower surface of transparent substrate layer
Atomizing layer；
(4) ultraviolet light (UV) solidified resin is coated on to the upper surface of substrate layer, rolled through mould and ultraviolet radiation-curable, shape
Into the light collecting layer with micro-structural, so as to which sprayed film finished product be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710678965.XA CN107422530A (en) | 2017-08-10 | 2017-08-10 | A kind of high sprayed film for covering high brightness and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710678965.XA CN107422530A (en) | 2017-08-10 | 2017-08-10 | A kind of high sprayed film for covering high brightness and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107422530A true CN107422530A (en) | 2017-12-01 |
Family
ID=60436935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710678965.XA Pending CN107422530A (en) | 2017-08-10 | 2017-08-10 | A kind of high sprayed film for covering high brightness and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107422530A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270611A (en) * | 2018-12-11 | 2019-01-25 | 宁波激智科技股份有限公司 | A kind of complex optical film that high brightness height covers |
| CN112068353A (en) * | 2020-09-09 | 2020-12-11 | 深圳创维－Rgb电子有限公司 | Liquid crystal display module and liquid crystal splicing screen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080035418A (en) * | 2006-10-19 | 2008-04-23 | 이펀 테크놀러지 컴퍼니, 리미티드 | Brightness enhancement film for diffusion and directing light |
| CN103293575A (en) * | 2013-05-10 | 2013-09-11 | 张家港康得新光电材料有限公司 | Diffusion and brightness enhancement film and method for manufacturing same |
| CN103592706A (en) * | 2013-11-14 | 2014-02-19 | 宁波激智科技股份有限公司 | Atomization film applied to large-size displayer and backlight module thereof |
-
2017
- 2017-08-10 CN CN201710678965.XA patent/CN107422530A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080035418A (en) * | 2006-10-19 | 2008-04-23 | 이펀 테크놀러지 컴퍼니, 리미티드 | Brightness enhancement film for diffusion and directing light |
| CN103293575A (en) * | 2013-05-10 | 2013-09-11 | 张家港康得新光电材料有限公司 | Diffusion and brightness enhancement film and method for manufacturing same |
| CN103592706A (en) * | 2013-11-14 | 2014-02-19 | 宁波激智科技股份有限公司 | Atomization film applied to large-size displayer and backlight module thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270611A (en) * | 2018-12-11 | 2019-01-25 | 宁波激智科技股份有限公司 | A kind of complex optical film that high brightness height covers |
| CN112068353A (en) * | 2020-09-09 | 2020-12-11 | 深圳创维－Rgb电子有限公司 | Liquid crystal display module and liquid crystal splicing screen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107340553A (en) | A kind of high sprayed film for covering high briliancy and preparation method thereof | |
| CN103592706B (en) | A kind of sprayed film and backlight module thereof being applied to large-sized monitor | |
| CN104880747B (en) | Multi-function composite optical membrane capable of replacing diffusion plate and manufacturing method thereof, and display screen | |
| CN101512393B (en) | Lens sheet, surface light source, and liquid crystal display device | |
| US7972689B2 (en) | Optical thin sheet | |
| US7740945B2 (en) | Brightness enhancement film | |
| CN101738649B (en) | Composite optical film structure with multiple coatings | |
| CN103345011B (en) | A kind of diffusion barrier being applied to side-light backlight module | |
| KR20090088438A (en) | Lens sheet, surface light source device and liquid crystal display device | |
| CN109683377B (en) | High-haze adhesive layer composition and high-haze high-brightness composite brightness enhancement film | |
| CN104035151B (en) | A kind of flexible optical diffusion barrier and preparation method thereof | |
| TW200409961A (en) | Light control film | |
| CN104375226B (en) | A kind of diffusion type blast reflectance coating and back lighting device | |
| CN111443516A (en) | Optical composite film and preparation method thereof | |
| CN106680919A (en) | High-luminance diffusion silver-plated reflective film and preparation method thereof | |
| CN102042565A (en) | Brightness enhancement film, backlight module having same and manufacturing method of brightness enhancement film | |
| CN102834742A (en) | Light-diffusing film for led lamp | |
| CN103389531A (en) | Reflecting film manufacturing method and backlight module | |
| CN109975918A (en) | A kind of fitting optical module and liquid crystal module entirely | |
| CN101542322A (en) | Condensing film for LCD backlight unit and LCD backlight unit using the same | |
| CN107422530A (en) | A kind of high sprayed film for covering high brightness and preparation method thereof | |
| CN105988151A (en) | Light turning film | |
| CN106118442B (en) | A kind of optical film cold coating and its application | |
| CN101563630A (en) | Lens sheet, surface light source device and liquid crystal display device | |
| CN204790051U (en) | Compound optical sheet structure of straight following formula backlight |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |